Experimental results for electron Bernstein wave heating in the large helical device

Hiroe Igami; Shin Kubo; Takashi Shimozuma; Yasuo Yoshimura; Hiromi Takahashi; Hiroshi Idei; Masaki Nishiura; Shinya Ogasawara; Ryohei Makino; Ryuhei Kumazawa; Takashi Mutoh; Akio Sagara; Takuya Goto

doi:10.1585/pfr.7.2402110

Experimental results for electron Bernstein wave heating in the large helical device

Hiroe Igami, Shin Kubo, Takashi Shimozuma, Yasuo Yoshimura, Hiromi Takahashi, Hiroshi Idei, Masaki Nishiura, Shinya Ogasawara, Ryohei Makino, Ryuhei Kumazawa, Takashi Mutoh, Akio Sagara, Takuya Goto

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4 Citations (Scopus)

Abstract

Electron cyclotron heating (ECH) using electron Bernstein waves (EBWs) was studied in the large helical device (LHD). Oblique launching of the slow extraordinary (SX-) mode from the high field side and oblique launching of the ordinary (O-) mode from the low field side were adopted to excite EBWs in the LHD by using electron cyclotron (EC) wave antennas installed apart from the plasma surface. Increases in the stored energy and electron temperature were observed for both cases of launching. These launching methods for ECH using EBWs (EBWH) is promising for high-density operation in future helical fusion devices instead of conventional ECH by normal electromagnetic modes.

Original language	English
Article number	2402110
Journal	Plasma and Fusion Research
Volume	7
Issue number	SPL.ISS.1
DOIs	https://doi.org/10.1585/pfr.7.2402110
Publication status	Published - 2012

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1585/pfr.7.2402110

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abstract = "Electron cyclotron heating (ECH) using electron Bernstein waves (EBWs) was studied in the large helical device (LHD). Oblique launching of the slow extraordinary (SX-) mode from the high field side and oblique launching of the ordinary (O-) mode from the low field side were adopted to excite EBWs in the LHD by using electron cyclotron (EC) wave antennas installed apart from the plasma surface. Increases in the stored energy and electron temperature were observed for both cases of launching. These launching methods for ECH using EBWs (EBWH) is promising for high-density operation in future helical fusion devices instead of conventional ECH by normal electromagnetic modes.",

author = "Hiroe Igami and Shin Kubo and Takashi Shimozuma and Yasuo Yoshimura and Hiromi Takahashi and Hiroshi Idei and Masaki Nishiura and Shinya Ogasawara and Ryohei Makino and Ryuhei Kumazawa and Takashi Mutoh and Akio Sagara and Takuya Goto",

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doi = "10.1585/pfr.7.2402110",

language = "English",

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journal = "Plasma and Fusion Research",

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T1 - Experimental results for electron Bernstein wave heating in the large helical device

AU - Igami, Hiroe

AU - Kubo, Shin

AU - Shimozuma, Takashi

AU - Yoshimura, Yasuo

AU - Takahashi, Hiromi

AU - Idei, Hiroshi

AU - Nishiura, Masaki

AU - Ogasawara, Shinya

AU - Makino, Ryohei

AU - Kumazawa, Ryuhei

AU - Mutoh, Takashi

AU - Sagara, Akio

AU - Goto, Takuya

PY - 2012

Y1 - 2012

N2 - Electron cyclotron heating (ECH) using electron Bernstein waves (EBWs) was studied in the large helical device (LHD). Oblique launching of the slow extraordinary (SX-) mode from the high field side and oblique launching of the ordinary (O-) mode from the low field side were adopted to excite EBWs in the LHD by using electron cyclotron (EC) wave antennas installed apart from the plasma surface. Increases in the stored energy and electron temperature were observed for both cases of launching. These launching methods for ECH using EBWs (EBWH) is promising for high-density operation in future helical fusion devices instead of conventional ECH by normal electromagnetic modes.

AB - Electron cyclotron heating (ECH) using electron Bernstein waves (EBWs) was studied in the large helical device (LHD). Oblique launching of the slow extraordinary (SX-) mode from the high field side and oblique launching of the ordinary (O-) mode from the low field side were adopted to excite EBWs in the LHD by using electron cyclotron (EC) wave antennas installed apart from the plasma surface. Increases in the stored energy and electron temperature were observed for both cases of launching. These launching methods for ECH using EBWs (EBWH) is promising for high-density operation in future helical fusion devices instead of conventional ECH by normal electromagnetic modes.

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Experimental results for electron Bernstein wave heating in the large helical device

Abstract

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